Tab. I.2 Limit values (LV) for the protection of ecosystems and vegetation according to the Act No. 201/2012 Coll.

Pollutant Averaging interval Assessment threshold
[µg.m-3]
Limit value
[µg.m-3]
LV
Lower
LAT
Upper
UAT
SO2 year and winter period(1.10.-31.3.) 8 12 20
NO2 calendar year 19.5 24 30

 

Pollutant Averaging interval Assessment threshold
[µg.m-3]
Limit value
[µg.m-3.h]

LV

Lower
LAT
Upper
UAT
O3 AOT40,
calculated from 1h values between May and July
18,000
average for 5 years

Note: AOT40 is the sum of differences between the hourly concentration higher than 80 μg.m-3 (= 40 ppb) and the value 80 μg.m-3 in the given period by using only hourly values measured every day between 8:00 and 20:00 CET.


Long-term objectives

Pollutant Application Averaging interval Long-term objective
[µg.m-3.h]
O3 for the protection of ecosystems and vegetation AOT40,
 calculated from 1h values between May and July
6,000